Yeah our 2014 model is the same and it only struggles with 4k footage which is a shame but must admit I usually just keep that on my phone and watch from there.Agreed. My 2015 5K is still humming along nicely as a media server/wife's desktop. Definitely won't see that combination of a quality screen + decent specs for an AiO under $2K ever again.
I’d be tempted with a studio display and Mac Studio but my issue is the cost of a monitor which isn’t leaps and bounds ahead of my 10 year old iMac! I find myself comparing the cost of the studio display versus a 4k tv
And it doesn’t have value for money.